How to switch between sleep modes in STM32L476RE?

Pranathi_ch · ‎2025-09-03

Hi Team,

I am planning to use STM32L476RE MCU for my project, Can I know how to switch between Stop1,2 and low power sleep and run modes? I am new to STM32 and I need a reference code or some guidance to start with, any help very much appreciated.

Thanks in advance,

CH. Pranathi

Imen.D · ‎2025-09-03

Hello @Pranathi_ch and welcome to the Community,

I recommend you refer these resources:

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

Andrew Neil · ‎2025-09-03

The Sleep mode is defined when you enter Sleep.

To change Sleep mode, you will need to wake up, then choose the different mode when you enter Sleep again.

PS:

In addition to the resources mentioned by @Imen.D, see also the descriptions in the Datasheet & Reference Manual.

Also Application note AN4746, Optimizing power and performance with STM32L4 and STM32L4+ Series
microcontrollers.

And see the examples in CubeIDE demonstrating the various modes

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